to answer your question: "no, do not ship applejack with rarity or anypony.however...they are my favorite duo. The artist behind rarijackdaily (whitediamondsltd) is my top favorite artist, and I cannot deny how cute I find them together. So maybe there is a little (just a sneaky small amount) of Applejack rarity shipping there.

But I usually see them just as good friends with opposite characters, which is why I love the two together (as friends).